Mr, P. L. Sclater on the Neotropical Pipits. 365 



is to be referred, though when two such extremes are com- 

 pared as Taczanowski^s A. calcaratus and A. brevirostris it is 

 somewhat startling to affirm that they ought to be put 

 together. For the present, at any rate, I keep them distinct. 

 In A. furcatus, then, the outer rectrix is pure white, with 

 a broad black patch on the inner web, beginning at the base, 

 and extending up to within one third of the length of the 

 feather from the tip. Towards the tip there is likewise more 

 or less indication of a narrow black patch on the outer web. 

 In the second rectrix (see fig. 2«) there is a very clear and 



Fig. 2. 



a. Second left outer rectrix of A. furcatus (lower surface). 



b. Foot of ditto. 



distinct broad white line along the inner side of the shaft, the 

 remaining (outer portion) of the inner web being quite black. 

 This is obviously a mere augmentation of the corresponding 

 colours in A. correndera ; but the colours are much more 

 definite. 



D'Orbigny gives Patagonia and High Bolivia as the patria 

 of his Anthus furcatus. If my views as to his species are cor- 

 rect, it also occurs near Buenos Ayres and in Central Peru, 

 having nearly the same range as A. correndera. The ques- 

 tion is. Is it really separable from that species ? 



In three examples of A. furcatus before me the two middle 

 rectrices are slightly shorter than the others, and the tail may 

 be said to be slightly forked. But I also observe this feature 

 in some specimens of ^. correndera. 



